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Name: Tiawood
Status: Other
Grade:  Other
Location: PA
Country: United States
Date: June 2006

Why don't antibiotics work on a virus?

Viruses and bacteria are completely different structurally. Their molecular structure and protein structure are different as well as their mechanisms of infection. Antibiotics have specific components that targets bacterial structure and function. Because viruses are so different, antibiotics have no effect on them.

Saundra Sample, D.V.M.

Antibiotics like penicillin and it's many derivatives block the synthesis of bacterial cells walls. Streptomycin interferes with protein synthese by binding to bacterial ribosomes. Since viruses contain neither cell walls nor ribosomes, they are immune to the action of these antibiotics.

Ron Baker, Ph.D

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